L6565

Active

Quasi-resonant Controller

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  • The L6565 is a current-mode primary controller IC, specifically designed to build offline Quasi-resonant ZVS (Zero Voltage Switching at switch turn-on) flyback converters.

    Quasi-resonant operation is achieved by means of a transformer demagnetization sensing input that triggers MOSFET's turn-on.
    Converter's power capability variations with the mains voltage are compensated by line voltage feedforward. At light load the device features a special function that automatically lowers the operating frequency still maintaining the operation as close to ZVS as possible. In addition to very low start-up and quiescent currents, this feature helps keep low the consumption from the mains at light load and be Blue Angel and Energy Star compliant.
    The IC includes also a disable function, an on-chip filter on current sense, an error amplifier with a precise reference voltage for primary regulation and an effective two-level overcurrent protection.

    Key Features

    • TV/MONITOR SMPS
    • BLUE ANGEL, ENERGY STAR, ENERGY 2000 COMPLIANT
    • DIGITAL CONSUMER
    • AC-DC ADAPTERS/CHARGERS
    • PRINTERS, FAX MACHINES, PHOTOCOPIERS AND SCANNERS
    • 1% PRECISION (@ Tj = 25˚C) INTERNAL REFERENCE VOLTAGE
    • DISABLE FUNCTION (ON/OFF CONTROL)
    • QUASI-RESONANT (QR) ZERO-VOLTAGE-SWITCHING (ZVS) TOPOLOGY
    • FREQUENCY FOLDBACK FOR OPTIMUM STANDBY EFFICIENCY
    • LINE FEED FORWARD TO DELIVER CONSTANT POWER vs. MAINS CHANGE
    • ULTRA-LOW START-UP (< 70µA) AND QUIESCENT CURRENT (< 3.5mA)
    • ±400mA TOTEM POLE GATE DRIVER WITH UVLO PULL-DOWN
    • PULSE-BY-PULSE & HICCUP-MODE OCP

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Related Applications

Power Supplies and Converters

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STMicroelectronics - L6565

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Quality and Reliability

Part Number Marketing Status Package Grade RoHS Compliance Grade Material Declaration**
L6565D
Active
SO-8 Industrial Ecopack2 (**)
L6565DTR
Active
SO-8 Industrial Ecopack2 (**)
L6565N
Active
DIP-8 Industrial Ecopack2

L6565D

Package:

SO-8

Material Declaration**:

Marketing Status

Active

Package

SO-8

Grade

Industrial

RoHS Compliance Grade

Ecopack2 (**)

L6565DTR

Package:

SO-8

Material Declaration**:

PDF XML

Marketing Status

Active

Package

SO-8

Grade

Industrial

RoHS Compliance Grade

Ecopack2 (**)

L6565N

Package:

DIP-8

Material Declaration**:

Marketing Status

Active

Package

DIP-8

Grade

Industrial

RoHS Compliance Grade

Ecopack2

(**) The Material Declaration forms available on st.com may be generic documents based on the most commonly used package within a package family. For this reason, they may not be 100% accurate for a specific device. Please contact our sales support for information on specific devices.

Sample & Buy

Part Number
Order from Distributors
Order from ST
Marketing Status
ECCN (US)
ECCN (EU)
Packing Type
Package
Temperature (°C) Country of Origin
Budgetary Price (US$)*/Qty
min
max
L6565D Available at 6 distributors

Distributor availability ofL6565D

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 3551 1 Order Now
COMPEL EUROPE 5201 1 Order Now
RS COMPONENTS EUROPE 294 2 Order Now
ARROW EUROPE 11980 0 Order Now
MOUSER WORLDWIDE 2127 1 Order Now
Farnell Element14 EUROPE 3934 1 Order Now

Distributor reported inventory date: 2021-01-25

Distributor Name

DIGIKEY

Stock

3551

Min.Order

1

Region

WORLDWIDE Order Now

COMPEL

Stock

5201

Min.Order

1

Region

EUROPE Order Now

RS COMPONENTS

Stock

294

Min.Order

2

Region

EUROPE Order Now

ARROW

Stock

11980

Min.Order

0

Region

EUROPE Order Now

MOUSER

Stock

2127

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

3934

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2021-01-25

Buy Direct
Active
EAR99 NEC Tube SO-8 - - MOROCCO 0.32 / 1k
L6565N Available at 5 distributors

Distributor availability ofL6565N

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 932 1 Order Now
ARROW EUROPE 1747 0 Order Now
Newark Element14 AMERICA 28 0 Order Now
MOUSER WORLDWIDE 1882 1 Order Now
Farnell Element14 EUROPE 32 1 Order Now

Distributor reported inventory date: 2021-01-25

Distributor Name

DIGIKEY

Stock

932

Min.Order

1

Region

WORLDWIDE Order Now

ARROW

Stock

1747

Min.Order

0

Region

EUROPE Order Now

Newark Element14

Stock

28

Min.Order

0

Region

AMERICA Order Now

MOUSER

Stock

1882

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

32

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2021-01-25

Buy Direct
Active
EAR99 NEC Tube DIP-8 - - CHINA 0.32 / 1k
L6565DTR Available at 6 distributors

Distributor availability ofL6565DTR

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 6483 1 Order Now
FUTURE WORLDWIDE 2500 2500 Order Now
ARROW EUROPE 10000 0 Order Now
Newark Element14 AMERICA 435 0 Order Now
ARROW AMERICA 2500 2500 Order Now
MOUSER WORLDWIDE 273 1 Order Now

Distributor reported inventory date: 2021-01-25

Distributor Name

DIGIKEY

Stock

6483

Min.Order

1

Region

WORLDWIDE Order Now

FUTURE

Stock

2500

Min.Order

2500

Region

WORLDWIDE Order Now

ARROW

Stock

10000

Min.Order

0

Region

EUROPE Order Now

Newark Element14

Stock

435

Min.Order

0

Region

AMERICA Order Now

ARROW

Stock

2500

Min.Order

2500

Region

AMERICA Order Now

MOUSER

Stock

273

Min.Order

1

Region

WORLDWIDE Order Now

Distributor reported inventory date: 2021-01-25

Buy Direct
Active
EAR99 NEC Tape And Reel SO-8 - - MOROCCO 0.32 / 1k

L6565D

Marketing Status

Active

ECCN (US)

EAR99

Budgetary Price (US$)*/Qty

0.32 / 1k

Distributor availability ofL6565D

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 3551 1 Order Now
COMPEL EUROPE 5201 1 Order Now
RS COMPONENTS EUROPE 294 2 Order Now
ARROW EUROPE 11980 0 Order Now
MOUSER WORLDWIDE 2127 1 Order Now
Farnell Element14 EUROPE 3934 1 Order Now

Distributor reported inventory date: 2021-01-25

Distributor Name

DIGIKEY

Stock

3551

Min.Order

1

Region

WORLDWIDE Order Now

COMPEL

Stock

5201

Min.Order

1

Region

EUROPE Order Now

RS COMPONENTS

Stock

294

Min.Order

2

Region

EUROPE Order Now

ARROW

Stock

11980

Min.Order

0

Region

EUROPE Order Now

MOUSER

Stock

2127

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

3934

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2021-01-25

ECCN (EU)

NEC

Packing Type

Tube

Package

SO-8

Operating Temperature (°C)

(min)

-

(max)

-

Budgetary Price (US$)* / Qty

0.32 / 1k

Country of Origin

MOROCCO

L6565N

Marketing Status

Active

ECCN (US)

EAR99

Budgetary Price (US$)*/Qty

0.32 / 1k

Distributor availability ofL6565N

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 932 1 Order Now
ARROW EUROPE 1747 0 Order Now
Newark Element14 AMERICA 28 0 Order Now
MOUSER WORLDWIDE 1882 1 Order Now
Farnell Element14 EUROPE 32 1 Order Now

Distributor reported inventory date: 2021-01-25

Distributor Name

DIGIKEY

Stock

932

Min.Order

1

Region

WORLDWIDE Order Now

ARROW

Stock

1747

Min.Order

0

Region

EUROPE Order Now

Newark Element14

Stock

28

Min.Order

0

Region

AMERICA Order Now

MOUSER

Stock

1882

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

32

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2021-01-25

ECCN (EU)

NEC

Packing Type

Tube

Package

DIP-8

Operating Temperature (°C)

(min)

-

(max)

-

Budgetary Price (US$)* / Qty

0.32 / 1k

Country of Origin

CHINA

L6565DTR

Marketing Status

Active

ECCN (US)

EAR99

Budgetary Price (US$)*/Qty

0.32 / 1k

Distributor availability ofL6565DTR

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 6483 1 Order Now
FUTURE WORLDWIDE 2500 2500 Order Now
ARROW EUROPE 10000 0 Order Now
Newark Element14 AMERICA 435 0 Order Now
ARROW AMERICA 2500 2500 Order Now
MOUSER WORLDWIDE 273 1 Order Now

Distributor reported inventory date: 2021-01-25

Distributor Name

DIGIKEY

Stock

6483

Min.Order

1

Region

WORLDWIDE Order Now

FUTURE

Stock

2500

Min.Order

2500

Region

WORLDWIDE Order Now

ARROW

Stock

10000

Min.Order

0

Region

EUROPE Order Now

Newark Element14

Stock

435

Min.Order

0

Region

AMERICA Order Now

ARROW

Stock

2500

Min.Order

2500

Region

AMERICA Order Now

MOUSER

Stock

273

Min.Order

1

Region

WORLDWIDE Order Now

Distributor reported inventory date: 2021-01-25

ECCN (EU)

NEC

Packing Type

Tape And Reel

Package

SO-8

Operating Temperature (°C)

(min)

-

(max)

-

Budgetary Price (US$)* / Qty

0.32 / 1k

Country of Origin

MOROCCO

(*) Suggested Resale Price per unit (USD) for BUDGETARY USE ONLY. For quotes, prices in local currency, please contact your local ST Sales Office  or our Distributors